In a report I wrote earlier this year called "Travel Blogs: Aligning Marketing Objectives with Blog Strategy", I talked about the potential of corporate blogs as a branding opportunity and the importance of allowing readers to post comments to maintain a conversational dynamic.

Today, Southwest Airlines launched an online casting call to find their next "Blog-o-spondent" for its corporate blog "Nuts About Southwest".

Readers are invited to create a one minute video explaining why they should get the position. Blog readers will vote for the top three entries who will compete at the 2008 BlogWorld Expo in Las Vegas.

This is a great example of how a corporate blog can be an interactive community builder and branding tactic.

Nuttiness will surely ensue — if you're interested in demonstrating yours, check it out.